Distilling apparatus.



No. 656K522; N H, HILL Patented Fab. 5, l90l.

DISTILLING APPARATUS.

(Application flld Oct. 11, 1900.)

(N0 Model.)

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Unrrnn Sterne PATENT.

NICOLAI H. HILLER, OF CARBONDALE, PENNSYLVANIA.

DlSTlLLlNG APPARATUS.

SFECIFICA'IION formingpart of Letters Patent No. 667,522, dated February5, 1901.

Application filed October 11, 1900. Serial No. 32,672 (No model.)

T (0Z6 whom, it may concern.-

Be it known that I, NIooLAI H. HILLER, a citizen of the United States,residing at Oarbondale, in the county of Lackawanna and State ofPennsylvania, have invented certain new and useful Improvements inDistilling Apparatus, of which the followingisa speciiication, referencebeing had therein to the accompanying drawings.

This invention relates to apparatus for rectifying volatile gasesdistilled from aqueous solutions.

The type of apparatus illustrated in the drawings and with which myinvention is embodied comprises, essentially, a return-bend coil,through which the gas is passed, and a sprinkling-trough, whichdistributes a thin film of water over the coil, the return-bends atvarious heights being tapped by drip-pipes to receive the moisture orliquor deposited on the coil-pipes and convey the same to a receiver orheader, from which this condensation is returned to the still.

In the accompanying drawings, Figure 1 represents such parts as willgive a full understanding of the apparatus and with which myinventionisembodied; Fig. 2, adetached view of that part of the apparatus asheretofore used and to which my invention appertains, and Fig. 3 adetached view of a header arranged horizontally with the respectivepipes relatively connected like Fig. 1.

Referring to the drawings, it will be understood that the gas to berectified enters the coilthrough the pipe H at the bottom and passes outthrough the pipe N at the top.

P is a sprinkling-trough, which distributes a thin film of water overthe coil in the usual way. The return-bends B are tapped at variousheights of the coil and communicate with drip-pipes D E F and throughwhich the condensed liquor deposited in the coil-pipes A is conveyed tothe receiver or header H and from this is returned to the still by meansof a pipe G, this method of operation being well known in this class ofapparatus in association with the horizontal receiver or header shown inFig. 2.

In the use of the apparatus as referred to that is, with the receiver orheader H placed in its horizontal position and connected with the dripand return pipes, as shown in Fig. 2

a certain percentage of the gas passing down the lower drip-pipe D isby-passed through the other drip-pipes E and F, and thus escapesrectification.

The object of the present invention is to obviate this dificulty bypreventing this bypassing of the gas through the pipes D E F in order toobtain a more perfect rectification.

The invention consists in connecting the return-pipe G with the headerat a point below the first drip-pipe D and above the drippipes E and F,whereby the latter are sealed by the liquor and all by-passing of thegas thereby prevented. This may be accomplished by placing the receiveror header H in an inclined position, with the drip-pipes connected atdifferent planes of elevation and the return-pipe G below the firstdrippipe D and above the drip-pipes E and F, as shown in Fig. l or asshown in Fig. 3, wherein the same relative connection of the respectivepipes is made with a header used in a horizontal position.

While either arrangement above referred to will practically secure theresult desired, I prefer the former arrangement-that is, with the headerinclined, as shown in Fig. 1, which provides for any great variation ofpressure between the coil-pipes M N, whereby the level of the liquid inthe header might suddenly drop below the drip-pipe E. In this event thepipe F would still be sealed, due to its connection with the header at alower point.

It will be observed that when the drip-pipes D E F are connected withthe coil at different elevations, the height of the liquid column willbe greater in the pipe F than in the pipe E preceding, due to thedecreased pressure in the higher return-bend connecting with the pipe E.

Having thus fully described my invention, what I claim, and desire tosecure by Letters Patent, is

1. In an apparatus for rectifying volatile the return-pipe connected atapoint beneath heath the first drip-pipe connection, subthe firstdrip-pipe connection and above the stantially as shown and for thepurpose set successive drip-pipe connections, whereby forth. the latterare sealed by the liquor and the In testimony whereof I afiix mysignature 5 by-passing of the gas prevented, substanin presence of twowitnesses.

tially as described. v 1

2. The header or receiver H inclined from NICOLAI a level position withthe drip-pipes connected Witnesses: at different heights of thecollected liquor E. D. YARRINGTON, to and the return-pipe connected at apoint be- J. R. VANDERFORD.

